On Saturday at the Encore Beach Club in Las Vegas, Maksim was there celebrating with Peta, who won Dancing With the Stars with Donald Driver last week.
That wasn't the only time the hard-bodied pair and rumored couple were spotted together in Sin City. Witnesses have seen them together all over Vegas.
And, at the opening of Chmerkovskiy's new dance studio in Connecticut on May 23, the pair stood arm-in-arm while he whispered in her ear. Hmm ...
Peta Murgatroyd and Maksim Chmerkovskiy
"She's had a crush on him for a long time," a source tells People of Peta. "They are really great together. And he is very happy. It's early but I think this will last. They're a great match, a good couple. She says they're not dating but they are. Everyone knows it."
Still, at the debut of the Dance With Me studio (which Maks opened with his brother Val and fellow pro Tony Dovolani), both danced around questions.
"I'm here to support Maksim," was all Murgatroyd would say about Chmerkovskiy, who wouldn't directly address the nature of their relationship either.
"I try to keep certain things private just because – what's a politically correct way of saying it? It's none of anybody's business," he said. "It's very intimate and personal."
Yeah. They're totally doing the horizontal Argentine tango.
[Photo: Fame/Flynet]